Stock cast iron distributor gears are not compatible with steel camshafts. COMP Cams Bronze Distributor Gears are the first requirement when installing a steel roller cam. They are made from AMPCO-45 extruded aluminum bronze with 5% nickel added. They feature a high strength tooth design that resists wear even when used with high pressure oil pumps.
Featuring a high strength tooth that resists wear even with high-pressure oil pumps, this .491" I.D. bronze distributor gear fits steel roller cams in '77-78 Pontiac 151, '79-'89 Pontiac 151, Chevrolet 153 4 cyl and 194-250, 292 6 cylinder.
For Pontiac 4 Cyl. 151 Applications; .491 Shaft Diameter; First requirement when installing a steel roller cam; AMPCO-45 extruded aluminum bronze with 5% nickel added; Feature a high strength tooth design that resists wear